Wire-drawing appliance.



o. 768,602. PATENTED AUG. 30, 1904.

D. HENDERSON.

WIRE DRAWING APPLIANCE.

- APPLICATION FILED OUT. 30, 1903.

N0 MODEL. 4

WW-8' 4 1711 51/70? "MWX 9 Patented August 30, I904.

UNIT D STATES. PATENT Fries.

DAVID HENDERSON, or WATERBURY, CONNECTICUT.

WIRE-DRAWING APPLIANCE.

SPECIFICATION forming part of Letters Patent No. 768,602, dated August 30, '1904.

Application filed October 30, 1903.

Tom whom, it floaty concern:

Be it known that I, DAVID HENDERSON, of Waterbury,.county of New Haven, State of Connecticut, have invented certain new and useful Improvements in VVire-Drawing Machines; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to-which it pertains to make and use the same.

My invention is for the purpose'of drawing wireflby means of a drum at once without any preliminary drawing, and I accomplish this by. means of a device which overcomes the need of reducing the end of the wire (by swaging) beforehandfor any greater length than is sufficient to extend through the die and only protrude far enough beyond to allow the jaws of a gripping-vise to take hold. The common practice is to reduce the end of the wire in this'manner and in addition thereto to draw, by means of a separate device for the purpose, a certain length more before the drum is put into operation, the amount thus reduced and drawn beforehand being sufficient to reach from the vise, which is located on or near the top of the drum, diagonally downward to the die, which is at about the level of the flange 'and' rests in a holder permanently fastened to a bench or table. At first the wire as it is drawn winds diagonally from the die around the drum to the vise. After this the direction of the pull and the friction due to the pressure against the drum immediately bring it down and it passes from the die onto the fillet of the flange, which acts as an abutment, constantly crowding it upward, or, in terms of the trade, causing it to cast. The drum is turned slightly tapering, and the gripping-vise is located high up to permit the wire to cast with as little resistance as possible. The height of the drawing-surface is but a small part of the total height of the drum, and above this the diameter is reduced, the wire when it comes up to the reduced part lying on loosely and the friction of the coilsin contact with the drawing-surface doing most of the work of drawing and reducing the strain on the vise. In my invention the drum may be as above described; but. the die instead of being staserial No. 179,246. (No model.)

tionary is held in a die-holding carriage made to move freely and eas ly along a curved 1nclined guide or track located adjacent'to it.

-Referring to the accompanying drawings,

Figures I, II, and III show plan, front, and side views, respectively, of my. invention. Fig. IV is a side view, on an enlarged scale, of the die-holding carriage and die.

In Figs. I, II, and III the position of the vise B at the time, the die-holder has reached the lower extremity of its travel is indicated by'broken lines, and the direction of the pull of the wire at this time isindicated by the broken line N. The position which is assumed by the die and its carriage shortly afterward and which is maintainedtill all the wire is drawn is indicated by the broken lines at A in Figs. I and III. The direction of the 'pull is now indicated by broken line L in Figs. I and II, which passes directly from the die onto the fillet of the flange Gr.

' The method of operating is as follows: The reduced end of the wire is passed through the die D and gripped by the vise B. The drum E is then revolved in the direction indicated by the arrow, and in drawing the wire. it pulls the die D along the guide F, to which it is joined by the holder O,into the finalposition A.

In Fig. IV, R is a roller which fits the track and takes the pressure. on the die from the holder through the pin P, on which it revolves.

It is to be noted that the movement of the die begins with the beginning of the revolution with a rotatable flanged wire-drum having a vise for gripping the end of the Wire located at or toward the end of said drum opposite the flange, of a traveling die through Which said wire is drawn, a guide or track adjacent to said drum, inclined and curved from a point relatively close to said vise to a point approximately in the same plane as said flange for guiding said die in its movement, and means for connecting said die to said guide or track, whereby said die on putting said drum into operation is immediately drawn by the pull exerted on the wire into a position which causes said wire to pass onto said drum and cast upward, substantially as described and shown.

In a wire-drawing machine the combination with a rotatable wire-drum of a traveling die through which said wire is drawn, a guide or track adjacent to said drum, and means for connecting said die to said track, whereby the pull exerted on the wire by rotating said drum causes said die to travel as described, tlms enabling the drawing process to take place without the use of a separate drawing-in device, substantially as described.

In testimony whereofl have signed my name to this specification in the presence of two subscribing witnesses.

DAYI I) H EN l IGHSUN.

\Vitnesses:

PATRICK MoNUurv, .DANIEL DANAnnn. 

